James swinburne



(No Model.)

J'. SWI'NBURNE. CONDUCTOR.

No. 590,120. Patented Sept. 14,1897.

WITNESSES: //v VENTOI? A Tram/5 rs.

PATENT OFFICE.

JAMES SIVlNBURNE, OF LONDON, ENGLAND, ASSIGNOR TO THE SULPI'IIDE CORPORATION,- (ASIICROFTS PRO CESS,) LIMITED, OF SAME PLACE.

CONDUCTOR.

SPECIFICATION forming part of Letters Patent No. 590,129, dated September 14,1897. Application filed February 11, 1897. Serial No. 622,984. (No model.)

To all who'm it may concern.- Be it known that I, J AMES SWINBURNE, of

'6 6 Victoria Street,I Vestminster, London, En gland, have invented new'and useful Improve-- ments in Conductors for Telegraphs, Tole-I phones, and Electrical Distribution, of which the following is a full, clear, and exact description.

My invention has for its object the reduc -1. tion of the cost of distribution of electrical power, and conductors made in accordance with it can be employed for distributing eleo trical power in lighting, traction, or similar systems or for telegraph or telephone lines.

ity or conductance is obtained, but the conductor is larger, having a higher specific resistance than copper. This reduces the evil efiects of self-induction, or, as it is commonly called, the skin efiect, so that messages can be more easily sent.

According to my invention zinc should be deposited electrically by any suitable process, I such as Ashcrofts, and may, if it is found to pay, be speciallyrefined by electrolysis or distillation. It is then compressed, so as to increase its density, tenacity, and conductivity,

by rolling or drawing it into bars, rods, or wires, as the case may be, and used for electric mains, leads, or conductors.

a side elevation, and 'Fig. 2 isa cross-section,- of a zinc conductor such as herein described. 40

Conductors made according to my invention are also more economical than those of copper when subject to corrosion by electrolysis, as the money value of the metal eaten 01f by a given leakage-current is less. Similar considerations apply to determine the most suitable forms of joints and connections to be used with the new conductors, so as to utilize to the full the change of sectional area and greater cheapness of the material.

I claim- 1. An electric conductor made of electrically-deposited zinc, compressed to increase its density and tenacity, substantially as described.

2. An electric conductor made of electrically-deposited metal, compressed to increase its density and tenacity, subs antially as de:

' scribed.

JAMES SWINBURNE.

In presence or W. M. HARRIS, FRED C. HARRIS.

In the accompanying drawings, Figure 1 is 4 

